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What are the characteristics of capacitive touch screen (learning machine)
Release time:
2023/03/20 21:09
Among them, it is worth noting that the research and development of products 65-inch MDSN®The base narrow border capacitive touch function film is selected by BOE, a well-known global innovative Internet of Things company, to be mounted on its high-end all-in-one U1 series.
The implementation elements of intelligent surface and intelligent touch are perception and feedback, which means that perception is the need to perceive the user's actions. The implementation methods include capacitance, resistance, inductance, photoelectric, etc. Feedback means that the user's actions need to be confirmed or reminded by feedback. The implementation methods include vibration, sound, light, etc.
The principle of touch circuit of household appliances is basically the same. If the touch screen is not bright and out of control, first clean and dry the circuit board, check and replace the capacitors and diodes around the corresponding keys. These have no effect, and then consider replacing the chip.
The touch operation of the functional touch all-in-one machine benefits from its Class A 178 wide viewing angle touch screen. With the help of capacitive touch, it can realize sensitive, accurate and stable touch operation, fast response speed, no dead angle in touch, and simultaneous touch by multiple people. In order to avoid accidental damage to the touch screen, GT40 is equipped with a high-strength tempered glass outer screen on the touch screen, which can prevent the screen from being broken due to heavy objects falling and impact, and can minimize the possible damage to the screen in front of active students.
It cannot be multi-touch, that is, it can only support a single point. If two or more contacts are pressed at the same time, coordinates cannot be identified and found. To enlarge a picture on the resistance screen, you can only click multiple times. ITO is the main material used in resistive touch screens and capacitive touch screens. Their surface is ITO coating. The outer layer is pressed with fingertips or any object to make the surface film concave and deformed, so that the inner two ITO layers touch and conduct electricity to locate the coordinates of the pressed point to realize control. As a new computer input device, touch screen is a simple, convenient and natural way of human-computer interaction. It gives a new look to multimedia, is very attractive new multimedia interactive equipment.
At present, the touch types of conference tablets on the market are mostly infrared touch and capacitive touch. The principle of the infrared touch screen is to identify the touch position by blocking the infrared ray formed between the emitting lamp tube and the receiving lamp tube in the touch screen through the medium, while the capacitive touch is to identify the touch point by touching the circuit on the touch screen through the touch pen/finger, and the touch screen senses the touch.
Focus on liquid crystal display and touch products, its products include monochrome liquid crystal display, monochrome liquid crystal display module, color liquid crystal display module and capacitive touch screen, etc., and have established long-term stable cooperative relations with many well-known enterprises at home and abroad.
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